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<wasamasa>
a
<ProteusX>
bsolutely.
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<atmosx>
Good morning everyone
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<ProteusX>
good morning atmosx
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<agent_white>
Evenin/moin
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<atmosx>
bbl
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<DeathCode>
hey guys
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<DeathCode>
anybody here?
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<agent_white>
NOPE
<agent_white>
All died in a fire
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<unshadow>
So, I have a ruby program which I know some part of it (not sure which) is eating large amount of RAM and CPU, what tools are there to monitor\debug those sort of things ?
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<DeathCode>
guys anybody here?
<DeathCode>
can someone answer my question
<DeathCode>
how dont java coders get laid?
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<DeathCode>
why dont java coders get laid?
<agent_white>
Why do you think they don't?
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<DeathCode>
because they treat women like objects
<agent_white>
budumTISH
<DeathCode>
hehe :)
<DeathCode>
why do ruby coders not get laid?
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<DeathCode>
because they are condescending as fuck
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<agent_white>
That would be mildly funny if it was even mildly true.
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<sevenseacat>
...
<sevenseacat>
not again.
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* agent_white
hugs sevenseacat
<agent_white>
sevenseacat: How are you today? :)
<sevenseacat>
busy!
<sevenseacat>
trying to finish off this book this weekend
<agent_white>
Good! Well maybe not! But maybe yes! :D
<sevenseacat>
rails probably changes the order of the params in the different cases
<ackpacket>
lol a what?
<sevenseacat>
by reassigning them around
<ackpacket>
hmmm
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<ackpacket>
So when someone does has_many :employees, :foo => :bar, :zib => :zeb, It examines the second "thing" separated by the commas, determines it's not a lambda, and assumes I elected not to provide any scope?
<sevenseacat>
likely so.
<sevenseacat>
dig through the code if you're really determined to find out, and keep discussions in the right channels - this isnt it.
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<ackpacket>
Sorry, thought it was a syntax issue
<ackpacket>
Is the "I'll try my best to make sense of whatever order you provide arguments in" a strictly rails issue?
<sevenseacat>
you cant provide things in any order. if you provide the options then the scope, it wont work.
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<jhass>
mh, a lambda closures too
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<apeiros>
>> puts "ä"
<apeiros>
d'oh
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<DeathCode>
is it better to run ruby on windows or ruby on linux
<DeathCode>
ruby on rails i mean
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<apeiros>
DeathCode: you'll probably run into less problems and get easier help with ruby on linux than with ruby on windows
<jhass>
yeah, more people test their stuff against linux/os x compared to windows in the ruby community
<DeathCode>
awesome
<DeathCode>
thanks guys
<DeathCode>
i should just go dual
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<jhass>
starting out with a VM is okay if you're new
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<DeathCode>
what was VM again
<DeathCode>
Virtual mode?
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<apeiros>
virtual machine
<DeathCode>
yes thanks
<apeiros>
see virtualbox and others
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<sevenseacat>
oh wow
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<apeiros>
wow?
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<jhass>
World of Warcraft
<agent_white>
World of Wonder
<agent_white>
Due to friends wondering what happened to you.
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<nickjj>
DeathCode, is your computer somewhat modern? what's the specs?
<DeathCode>
mines pretty good
<DeathCode>
windows 7. 8 gigs ram
<nickjj>
is it an i5/i7?
<DeathCode>
2.8 GHz
<DeathCode>
i5
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<DeathCode>
its ok
<DeathCode>
not good
<DeathCode>
def not great
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<nickjj>
you may want to consider using vmware (the free version)
<sevenseacat>
virtualbox is fine.
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<jhass>
^
<DeathCode>
need to learn html too apparently :(
<nickjj>
with unity mode it's like running both linux and windows at the same time
<jhass>
should easily take alloting 2GB to the VM
<sevenseacat>
DeathCode: for rails apps, you need to learn a lot more than that.
<DeathCode>
ye no shit
<apeiros>
add in css & js
<nickjj>
i've used both virtualbox and vmware for years, vmware's support for seamless mode/dual monitors/general "it just works" is much better
<DeathCode>
so much to learn so little time
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<sevenseacat>
i hope you put aside a good year or two, given how far you've gotten in a week or two.
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<DeathCode>
ye i should
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<avril14th>
holy cow, you guys are also all in on sundays!
<apeiros>
avril14th: the last two days have also been sunday
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<avril14th>
you seem to live in a wonderful timezone
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<apeiros>
I live in the timezone were we celebrate zombies
<apeiros>
though our zombie didn't crave brains - according to the books at least
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<avril14th>
they go right for the souls
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<DeathCode>
good night guys
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<apeiros>
oh, ruby 2.2 finally also tells you where the previous definition of a constant was with a "constant already defined" warning
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<apeiros>
damit, it's difficult to find a word which is not in the top10k passwords list
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<apeiros>
computers to the rescue…
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<jhass>
apeiros: I'd expect switzerdütsch (how do you even spell that correctly?) to have plenty of words to choose from
<apeiros>
there's no official spelling. I'd write it schwitzerdütsch
<apeiros>
but I've also seen schwyzerdütsch and other spellings :)
<apeiros>
but I need a word which is in the english dictionary, but no part of it in the top10k dictionary
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<apeiros>
apparently "abave" works :D
* jhass
submits that to some dictionary
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<apeiros>
it's in /usr/share/dict/web2
<apeiros>
no idea what it means
<jhass>
well, password list
<apeiros>
ah
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<apeiros>
anyway, password strength validator works now. including convenience methods which return a color, :bad, :low, :acceptable, :good, or a float (0-Inf, where anything >10 is excellent)
<apeiros>
I think that should cover all the bases :D
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<jhass>
no, please return a random insult of the form "Your grandma used a similar strong password, it was %{word}" with word being replaced by a random sample of the top 20 passwords
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<apeiros>
hm, but that it uses 100MB RSS is not nice
<jhass>
time for some crystal :P
<apeiros>
the two dicts are represented by two (large) regex
<nickjj>
i once wrote a password strength validator in js
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<apeiros>
I think those require that much memory
<nickjj>
it was about 5 lines of code and taunted you if it was less than 10 chars
<apeiros>
ok, I think by default I'll only use the top10k dict
<apeiros>
2MB instead of 100MB
<apeiros>
nickjj: lol
<nickjj>
but to be fair, it also encouraged you as you had > 12 > 16 > 20 chars
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<apeiros>
jhass: I'm pretty sure with some clever algorithmic & datastructural whizzbang I could make it use much less memory in ruby too. but I don't feel like spending the required time.
<jhass>
;)
<apeiros>
right now all I did was generate a large regex, which is basically all words |'ed in a single regex, ordered so that longest word matches first
<jhass>
I think I'd like to write the pastebin.com insulter btw, any wishes for that?
<apeiros>
you mean what helpa did? I'd prefer it not be insulting.
<jhass>
eh, you know how I mean that ;P
<apeiros>
poor pastebin users have no idea of the wrongness of their ways…
<apeiros>
well, helpa's code is fine. I can link you the pull request for #ruby's addition
<jhass>
like do we want to change the message on a second paste, do we want to persist that across restarts, do we want to include other services
<apeiros>
icing on the cake would be automatic re-gisting
<jhass>
oh, that's an interesting idea
<apeiros>
yeah, with re-gisting I think I'd change the message indeed.
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<jhass>
would make it harder to support multiple services though
<apeiros>
first time, gentle "people here prefer gist, I took the liberty to gist it for you here [link]. blabl reasons"
<apeiros>
second time no regist, and a "people might choose not to help you because of pastebin.com"
<apeiros>
and >2, no message anymore
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<apeiros>
it's fine if re-gisting only happens for pastebin. biggest offenders first.
<apeiros>
people can always make pull requests (ok, yes, I know, I'd have to make the source accessible for that)
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<jhass>
pastebin.com and irccloud.com are my biggest offenders, anything else?
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<apeiros>
none annoyed me enough for me to remember :)
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<jhass>
alright, in memory offenders list or shall I make a new table?
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<apeiros>
while in-memory is sufficient - do make a table. I'd love to query for those things :)
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<jhass>
cool
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<apeiros>
I'll do an update of the website & bot today or tomorrow
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<FernandoBasso>
I find that kind of shocking.
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* arup_r
watching.......
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<FernandoBasso>
At least ruby is so largely used that it is not hard to find tips and tutorials.
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<arup_r>
can I benchmark a ruby script file ?
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<ley>
hello rubist? may i ask the best way to store user settings/preference
<arup_r>
ley: yaml
<arup_r>
because Rails does this
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<FernandoBasso>
I just saw that UltiSnips inserts the options -wKU in the shebang line. I tried reading `man ruby`, and it talks about the KANJI encoding, etc. I could not understand much of it. Can someone help to clarify?
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<sevenseacat>
what
<FernandoBasso>
#!/usr/bin/env ruby -wKU
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<FernandoBasso>
-w is warnings, and K and U are about encodings, it seems.
<FernandoBasso>
By reading the man page it seems in my case I should set -KuU, and not just KU.
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<sevenseacat>
U is utf-8, correct
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<sevenseacat>
i cant see u in the list
<FernandoBasso>
Since K (without u, s, n, or e) will default for KANJI.
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<FernandoBasso>
I say u in man ruby in the `-K kcode` section.
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<sevenseacat>
ah hah
<FernandoBasso>
s/say/saw/
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<adaedra>
Hi
<arup_r>
I have this file on top #!/usr/bin/env ruby .. still I need to run the file using `ruby <file.rb>`... why ?
<adaedra>
has it the executable bit?
<sevenseacat>
arup_r: because the file isnt marked as executable
<arup_r>
yes
<arup_r>
no I made it sevenseacat
<sevenseacat>
show us
<FernandoBasso>
If it is executable already, do ./program.rb
<adaedra>
how do you try to execute it, arup_r
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<arup_r>
adaedra: why ./program.rb is needed... ? not only program.rb
<arup_r>
adaedra: although your trick worked
<FernandoBasso>
Not a trick.
<FernandoBasso>
And because . isn't in your PATH.
<adaedra>
because if you want it to respond to ’program.rb’ alone, you need to have the containing folder in your PATH.
<arup_r>
yes yes
<FernandoBasso>
Do export PATH="{$PATH}:." and you can probably run it just by typing program.rb.
<arup_r>
I forgot that
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<arup_r>
FernandoBasso: yes,,, right
<arup_r>
thanks all
<FernandoBasso>
It is ${PATH}, actually, not {$PATH}.
<adaedra>
If you want to make it callable from everywhere, look how to make a gem of your thing
<arup_r>
FernandoBasso: but your previous trick worked too
<sevenseacat>
theres no tricks here.
<FernandoBasso>
Yeah, I would just go with that first option for local testing.
<arup_r>
sevenseacat: I meant suggestion... ;)
<FernandoBasso>
Instead of messing with PATH.
<adaedra>
You could go with modifying PATH (But no .), but having a gem is the better solution for that.
<adaedra>
Since gem path is (theorically) already in $PATH.
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<arup_r>
ok thanks all
<FernandoBasso>
You are most welcome.
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<arup_r>
need some suggestions although..
<arup_r>
I read algorithms in my college life.. which is now almost 5 years... Now I forgot all the topics I read about algorithms... So I thought I'll relearn..
<arup_r>
As I do know only Ruby... currently.. I forgot C also.. so will it be a good idea to learn Algorithms using Ruby ?
<arup_r>
advices please
<adaedra>
Algorithms are a complex and complete topic on its own, and rarely linked to the langage
<adaedra>
Read about them online, experiment
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<arup_r>
yes,,
<arup_r>
so I can use Ruby .. right ?
<avril14th>
yes, ruby is finy-fine for algo coding
<arup_r>
avril14th: 0/
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<arup_r>
avril14th: finy-fine means ?
<avril14th>
means good
<arup_r>
ohh! :)
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<pie_>
hey guys, i dont use ruby but i need to reverse engineer some black box stuff, is there a way to get elapsed nanoseconds since epoch or somesuch?
<avril14th>
pie_: yes
<pie_>
avril14th: can you please link me some documentation? i dont know what to look for
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<phale>
this seems to work
<adaedra>
phale: you see the difference between the two?
<phale>
yeah
<phale>
.. is a range
<apeiros>
that's one part of the reason, yes
<apeiros>
the other is what a range means to String#[]
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<adaedra>
technically, both take a range, but exprimed differently
<guest22344>
hello
<adaedra>
hi
<guest22344>
i never programmed in ruby but just kinda of curious
<phale>
now I get a "password wrong" error
<phale>
i must be doing something wrong with the protocol
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<pie_>
avril14th: ah...
<adaedra>
guest22344: so, you have a question, or you just come to see us discuss?
<guest22344>
just to see a bit
<guest22344>
tourist like:)
<adaedra>
okay, enjoy your stay
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<apeiros>
guest22344: then enjoy your stay :)
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<guest22344>
thx very much
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<avril14th>
pie_: the website I gave you has all the docs for all the versions
<phale>
why wont my ruby program start
<jhass>
because it's broken
<phale>
it started earlier but now it wont start
<phale>
no it's not it worked
<jhass>
"worked", past tense
<avril14th>
I bet 1000$ on jhass, go man go! the guy is wrong!
<adaedra>
:D
<phale>
yeah but
<phale>
I didn't even edit the code
<phale>
and it wont start
<jhass>
well, then fix it
<phale>
how can i fix it if it's not even broken
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<jhass>
it is broken
<jhass>
it doesn't start so it's broken
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<phale>
if I do ^C
<apeiros>
have I ever told you how much I love those puzzle BNFs found in RFCs?
<phale>
it tells me that it stops at TCPSocket#open
<apeiros>
where token definitions are spread across the whole document, for you to find…
<phale>
maybe it can't connect to the server?
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<apeiros>
scavenger hunt…
<jhass>
phale: maybe
<phale>
i was right
<apeiros>
phale: if you want help, then really, you must provide actually usable information. "it won't start" *is not*
<phale>
i know
<apeiros>
then do better if you already know.
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<pie_>
avril14th: if a file upload page saved files under a name with an md5 hash, how would you do it?
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<pie_>
in my case the hashes change even if i upload the same file, so its probably time variant
<pie_>
well either that or it counts collisions :/
<avril14th>
pie_: gist of code?
<phale>
touch $(md5checksum file.rb)
<pie_>
i got nothing
<avril14th>
pie_: I do that and use SecureRandom to generate random file names
<phale>
c:
<pie_>
its what im trying to figure out
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<phale>
my apologies
<avril14th>
pie_: you don't have access to the code?
<phale>
touch $(md5sum file)
<avril14th>
I mean, what do you want to reverse engineering a script? :)
<avril14th>
+for
<phale>
touch $(md5sum file) < file
<pie_>
i want to see if i can try generating valid hashes myself, though it probably has a user id field as well, so i probably wont be able to since that is a hash as well
<phale>
what exactly do you want
<avril14th>
well indeed
<phale>
an upload that saves the file with its name the md5 sum of the file?
<avril14th>
reverse engineering of hashs / randoms / id generators is not easy
<phale>
that can be done with sh
<avril14th>
phale: the guy said it was time variant
<pie_>
avril14th: its not the hash itself that is the issue, its the scheme used to generate it
<phale>
avril14th: % pid
<pie_>
so basically md5(X) and i want to figure out the X
<phale>
you can't it's one way
<pie_>
well if we assume that its userid + time then i can take a valid user id, and brute force the time field
<pie_>
is time is seconds since epoch its easy, if its nanoseconds it takes a little longer
<phale>
you dont bruteforce md5
<phale>
you need a supercomputer
<pie_>
so basically i need to brute force variant fields and brute force the order
<apeiros>
phale: you're a decade late
<phale>
i am?
<apeiros>
phale: md5 are easy to crack.
<phale>
oh :(
<adaedra>
md5 is known to be insecure
<pie_>
phale: there are 1 billion nanoseconds in a second if i know the time to second certainty there are only 1 billion values to try
<phale>
only
<phale>
"only"
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<pie_>
idk how fast python does md5, but if you can do 1 million in a second it takes 1000 seconds to brute the space of a second
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<pie_>
ofc that can take a while if you have a lot of schemes to try since that multiplies it
<pie_>
and you have to take latency and stuff into account so you probably have to try a several second window, also hope for small clock drift on the remote server
<pie_>
the bottom line is i want to restrict the hash space as much as i can, then find the scheme, after i have the scheme maybe i can generate valid hashes with good probability
<pie_>
its a numbers game :P
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<jhass>
pie_: are you even sure it's a md5 hash? might just be a random value
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<pie_>
jhass: no im not sure tbh
<pie_>
which sucks
<pie_>
the width matches
<phale>
pie_: does it have 32 characters
<jhass>
as implementor when I don't want my files to be enumerated but still publicly accessible, I'd chose random filenames + rate limiting
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<pie_>
that would be the best for the implementor
<phale>
pie_: then it's correct
<phale>
all md5 hashes have 32 characters i think
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<jhass>
phale: when hex encoded
<pie_>
its funny because i want to be able to do this, but the better they implemented their backend, the better. so i guess im happy either way, but happier in the latter case
<phale>
jhass: yeah
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<jhass>
but as I just demonstrated a 16 byte long hex encoded value doesn't have to be a md5 hash
<pie_>
^
<apeiros>
a 16 byte long hex isn't an md5 hash. md5 hash is 16byte, which is 32byte in hex.
<pie_>
and since on this scale a hash function should be indistinguishable from random data, there is really no way to devide
<apeiros>
(it may be a slice from an md5, but a slice from an md5 is not an md5)
<pie_>
apeiros: then just SecureRandom.hex(32)
<apeiros>
pie_: that results in 64 hex digits ;-)
<pie_>
uh ok xD
<apeiros>
SecureRandom.hex(8) gets you 16 hex digits
<pie_>
bottom line is i have a value like 79229ac99072803311b4310e48bd9568
<phale>
is digest/md5 the de facto way of converting a string to md5?
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<apeiros>
yes
<phale>
okay
<apeiros>
it's "de facto standard" btw. ;-)
<phale>
strange
<phale>
my md5 changes every time i launch the program
<phale>
the md5 hash can't be different though since it's stored in a database
<apeiros>
"de facto" alone only means "following from the facts / as per the facts"
<phale>
apeiros: why does it change ??
<apeiros>
phale: you're - again - not providing any useful information to help you.
<phale>
alright
<pie_>
given an integer, how would you ruby guys hash it?
<pie_>
or does ruby handle casting it immediately
<apeiros>
pie_: depends on your requirements
<apeiros>
what do you hash it for?
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<phale>
When I run my ruby program, given no arguments to it, my program will generate a MD5 hash based on the password on a constant named PASSWORD, The only problem with this is that the hash is stored in a database, and it is forbidden for it to change.
<pie_>
still the same scenario, ive got no clue, this would be the nanoseconds since epoch thing(i basically just multiplied seconds by a billion)
<phale>
It will change every time the program is run
<apeiros>
phale: make a minimal code example demonstrating your problem
<apeiros>
phale: and put that code example on gist.github.com
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<pie_>
then öagain i should still check the docs
* pie_
reads docs
<apeiros>
pie_: I'm sorry, I'm not going to read the backlog and search for your use-case.
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<ruboto>
adaedra # => 1d8327deb882cf995f4dcc3b5aa765d6 ...check link for more (https://eval.in/308680)
<pie_>
and it seems to be time variant
<adaedra>
see, same hash.
<phale>
that's erratic
<adaedra>
so it’s not what you’re doing.
<apeiros>
phale: I run `ruby -e 'require "digest/md5"; hash = Digest::MD5.hexdigest("password"); hash = hash[16, 16] + hash[0, 16]; puts hash'` multiple times. I always get the same hash.
<phale>
I think the problem is with loginhash and encrypt combined.
<apeiros>
pie_: so you have a black box where you provide input and the box generates a (presumably md5) hash from your input and returns that?
<apeiros>
pie_: and you want to figure out the algorithm it uses to generate that hash from your input?
<pie_>
yep
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<apeiros>
pie_: and the hash changes for the same input?
<pie_>
yep
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<apeiros>
good luck then :-)
<pie_>
;P yep
<pie_>
ill probably give up sooner or later
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<apeiros>
could be a RNG, could be Time, could be a database ID
<pie_>
could be anything :/
* pie_
scratches head
<apeiros>
the amount of time you'd have to spend to rule db ID and time out is significant. and if you rule them out you end up with RNG which you're unlikely to be able to predict.
<phale>
I mean this program could be correct and i'm thinking incorrectly.
<pie_>
actually that rng idea doesnt sound half bad
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<pie_>
and in that case it is true that nothing can be done
<pie_>
yeah the tim ein transit is annoying
<apeiros>
phale: ensure that you're really always passing the same value to encrypt
<apeiros>
phale: because I doubt you do
<phale>
the random key is random.
<phale>
that's probably why it changes when combined with the hash
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<apeiros>
phale: well, we're back - again - at you having to properly specify your problem.
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<pie_>
phale: well if you change the input the output is going to change...
<apeiros>
as I understand you, you claim that encrypt returns different values for the same input
<pie_>
thats the point of a hash function
<phale>
apeiros, loginhash
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<phale>
not encrypt
<phale>
sorry
<apeiros>
phale: …
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<apeiros>
phale: you say rndk changes, so *your input changes*
<sevenseacat>
so, how do i use send_file on heroku to send a file uploaded to s3
<phale>
You see, the random key is gotten from input from the server and stored into $key
<apeiros>
of course it'll have different ouptut
<phale>
Yeah, but this is how the protocol works
<apeiros>
*output
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<apeiros>
sevenseacat: #rubyonrails ?
<sevenseacat>
grr wrong one
<sevenseacat>
sry
<apeiros>
:-D
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<apeiros>
yeah, it's rare that there's more traffic here than there. easy to confuse under those conditions ;-p
<phale>
but apeiros, this is how the protocol works
<pie_>
apeiros: maybe they will reply to my email xD
<apeiros>
but phale, your code works as expected
<phale>
right
<phale>
except it generates the wrong hash
<apeiros>
then either you misunderstand the protocol or you implemented it wrongly.
<phale>
could be
<phale>
a small mistake makes all the difference in a program
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<endash>
“for want of a goto fail”
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<apeiros>
seriously, fuck the asshole who wrote the mail address ABNF. `quoted-pair = ("\" (VCHAR / WSP)) / obs-qp` - goes through 8 tokens and resolves to actually be "\" %x00-7f
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<apeiros>
and of course the syntax is recursive… a comment can contain a comment…
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<apeiros>
good thing I won't accept comments. otherwise that'd mean good bye to regex for parsing this.
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<phale>
i hate when the server stops responding to my requests after i've tested 90 of them on it
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<ytti>
apeiros, really often people who write standards are no longer operationally active, and in some times never were
<ytti>
so lot of times things like header formats are completely misguided to anyone who has slightest operational experience
<apeiros>
ytti: I understand that. doesn't lessen my urge to hit that guy with a bat. :)
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<ytti>
but i have no idea how to fix this, i know i don't have the patience needed to watch through all the politics to get standard done
<chridal>
Anyone in here use Tmux and Minitest? For some reason minitest is coloring my status line, and I can't find out how to turn it off...
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<apeiros>
ytti: well, theoretically an RFC is a "request for comments"
<apeiros>
maybe I should send an email - i.e., a comment
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<apeiros>
"simplify this the fuck down"
<apeiros>
+ "here's how:"
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<phale>
here's what I do in my Ruby code, first I write a non-oop version of it then transfer it to an OOP version
<phale>
anyone here do the same?
<apeiros>
phale: no. I think, live and breath OO.
<phale>
okay.
<apeiros>
but I'm in this business for over 2 decades.
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<sevenseacat>
phale: definitely not.
<ytti>
phale, why would you do that?
<sevenseacat>
its doing twice as much work, and you'll end up with shittier code.
<phale>
not sure
<ytti>
and which paradigm do you use?
<ytti>
ruby isn't very functional
<ytti>
maybe you could do imperative on it
<apeiros>
OO & imperative are orthogonal concepts
<apeiros>
I'd say most OO is imperative.
<apeiros>
as is functional
<phale>
data-driven
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<apeiros>
the only other paradigm in the same axis as imperative I know about is declarative. examples for that are prolog, sql
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<sevenseacat>
prolog did my brain in at uni
<apeiros>
yeah, I found it quite annoying too :)
<apeiros>
has its bright sides, though.
<apeiros>
but I'm a control freak, so I don't like declarative programming.
<sevenseacat>
then again, everything did my brain in at uni
<chridal>
It is definitely uncomfortable, being a control freak myself.
<phale>
i love data-driven programming
<phale>
complex data over complex procedures
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<apeiros>
any time my sql queries reach >10 lines, I remember that I dislike declarative programming :-/
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<apeiros>
(or any time my queries take >1ms)
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<apeiros>
note, query time only. not data transfer.
<sevenseacat>
i did c, hated it... did java, hated it... did prolog, hated it.... actually the little bit of haskell i did was fun
<chridal>
sevenseacat: Why did you hate C, if I may ask?
<sevenseacat>
two words - memory management
<chridal>
two letters - ok
<chridal>
:-)
<adaedra>
strengh and weakness
<sevenseacat>
:P
<ytti>
pure functional languages seem hard time breaking into commercial world as well as being your go-to language
<ytti>
i know there are opposite datapoints, but those seen minority
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<ytti>
the code probably would be less buggy in pure functional language
<chridal>
Yes I was actually about to get into haskell, clojure or the likes, but it doesn't seem like it has been embraced too much by the commercial world yet
<phale>
you hated C?
<phale>
what the hell
<phale>
memory management doesn't even occur a lot when it comes to C unless you're programming in the wrong way
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<sevenseacat>
what
<sevenseacat>
are you smoking
<ytti>
producing secure and bug-free C code seeems almost impossible to humans
<ytti>
i see people lot smarter than me failing at it constantly
<ytti>
so i don't feel motivated even to put effort in it
<adaedra>
bug-free code seems impossible in every language
<phale>
are you talking about memory allocation
<adaedra>
that’s why we have things like testing
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<ytti>
i hope rust to become the next systems programming language
<ytti>
much more compile time guarantees than c
<sevenseacat>
i have zero desire to go back to low-level programming
<phale>
ytti: nice meme
<adaedra>
ah, rust.
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<chridal>
how powerful is rust compared to C?
<ytti>
define powerful?
<chridal>
ambigious much.
<chridal>
:-)
<adaedra>
it can do what C can do.
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<ytti>
i does not have GC or VM, so technically there is no overhead
<chridal>
adaedra: Exactly what I wanted to know.
<ytti>
while i see it more competitor to C++ than C, I still think it could replace C
<sevenseacat>
i thought go was supposed to be the next great low-level thing
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<ytti>
nah
<chridal>
That sounds really beautiful to me. If Rust is seen as a competitor to C++, but can replace C.
<ytti>
go has great ecosystem, good libraries, good community
<chridal>
but?
<phale>
let's get this straight, you hated java and C but loved haskell?
<ytti>
but it's GC'd, which already excludes it from being low-level
<sevenseacat>
i like high-level things.
<ytti>
i also feel go isn't doing 'enough' it's pretty conservative and lacks lot of what people consider stables of modern languages
<chridal>
sevenseacat: Do you like control? Although high-level is nice, there is something beautiful about knowing everything that is running from the bottom up.
<adaedra>
Rust is nice, but difficult to handle
<ytti>
rust seems more ambitious
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<apeiros>
*sob*, reading through the email ABNF and mapping it to ruby code reminds me that shit like "hello world!"@example.com is a valid email address.
<phale>
apeiros: where can i create invalid emails
<apeiros>
I wonder how many MTAs accept that
<apeiros>
phale: I'm not sure your question makes any actual sense
<phale>
like
<phale>
8"v\ŧ]„@"@email.com
<adaedra>
This is valid?
<phale>
no
<sevenseacat>
probably
<adaedra>
let’s ask the pro, apeiros
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<phale>
apeiros has an anagram of pro in his name
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<phale>
a[p]ei[r][o]s
<apeiros>
phale: while I'm not an ABNF evaluating machine - I'd say no, it's not valid
<shevy>
hehe
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<apeiros>
then again, I'm now reading an extension which allows beyond-ascii local part.
<shevy>
apieros is very pro
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<adaedra>
é_è@example.org
<shevy>
hmm perhaps the ruby-community site should also feature channel highlights
<shevy>
like "greatest questions": "<phale> where can i create invalid emails"
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<shevy>
or best replies "<sevenseacat> what are you smoking"
* sevenseacat
curtsies
<shevy>
hehehe
<apeiros>
shevy: fork, add, make a pull request
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<raja_r>
#java
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<raja_r>
best place to learn ruby
<jhass>
I'm bored
<jhass>
raja_r: how so?
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<chridal>
haha. I love how the topic in #java says: "... and Javascript all have their own channel"
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<DigitallyBorn>
Is it possible to configure omniauth so I can reuse the facebook provider to expose a 2nd set of endpoints that use a different app id/secret?
<chridal>
How many people do you think joins #java and is hoping to get help with JQuery :-D
<Coraline>
I think it's understandable that new people don't understand the distinction actually.
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<raja_r>
in jquery and java
<raja_r>
yes maybe
<Coraline>
The naming of Javascript was a deliberate attempt to ride on Java's coattails
<Coraline>
So mission accomplished
<jhass>
source?
<Coraline>
Memory
<raja_r>
javascript is entirely different#caroline
<DigitallyBorn>
Coraline: I do, too. I mean, it was named to be complimentary to Java
<Coraline>
raja_r: I know that. I'm saying it's understandable that a newbie doesn't.
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<DigitallyBorn>
It was Mocha ... then something else, I think
<raja_r>
yes it was named so that people are attracted to it
<stamy>
however, my timestamp stays the same forever
<raja_r>
rails for zombies
<raja_r>
what is github
<jhass>
stamy: Time.new without arguments is the same as Time.now
<DigitallyBorn>
th so I can reuse the facebook provider to expose a 2nd set of endpoints that use a different app id/secret?
<DigitallyBorn>
oops
<DigitallyBorn>
Wrong window
<jhass>
stamy: the Time object returned represents a specific point in time, it's not a factory for arbitrary times or so
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<stamy>
jhass: ok, but i still want the time updated each line
<jhass>
so use a different time
<jhass>
and not the same one over and over again
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<stamy>
jhass: got it, thanks
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<stamy>
jhass: my last line from each repeating batch is "--------------". how can I put the timestamp not for each line but only after this line?
<jhass>
with an if condition detecting that line
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<stamy>
jhass: if message == "----------" puts Time.now
<stamy>
doesn't work...
<jhass>
then message isn't exactly "--------"
<jhass>
inspect what it is with p(message)
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<stamy>
jhass: I have an if statement that sends an e-mail upon finding "ALERT", but I don't want it to send each time the line gets printed in serial. I can do a sleep(5.minutes) but I woul like another idea if possible
<stamy>
also would be nice to limit the e-mails to a few within few hours, for false-positive scenarios
<Coraline>
stamy: do you have event models?
<stamy>
no...
<stamy>
very noob in ruby
<jhass>
stamy: save Time.now into a variable when sending the mail, when checking whether to send check whether enough time elapsed
<Coraline>
That's what I would do. Attach different behaviors to each type of object.
<Coraline>
.: each type of event
<jhass>
Time.now-last_email_sent_at > 5*60
<stamy>
ok. thank you guys
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<chridal>
That's so groce. Ruby in default PHP scheme...
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<havenwood>
atmosx: aloha
<atmosx>
havenwood: :-)
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<hanmac>
chridal: i think the author should look at Enumerable methods like select and any to make that better imo
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<chridal>
hanmac: I'm going to do an implementation of prime-factorizations now, as it doesn't seem the std library has it.
<chridal>
I'll have a look at select for it.
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<atmosx>
chridal: As Marcus de Sautoy said, Prime Factorization is *hard*. Basically, if Gauss couldn't do it, we're safe enough to use it virtually everywhere (referring to encryption).
<chridal>
atmosx: Oh, so that is why the std library doesn't include an implementation of it. Thanks for telling me, because I am really just trying to solve a puzzle from exercism.io
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<atmosx>
chridal: Nope, I don't think the ruby std library has anything to do with it. You can write a module to implement some sort of factorization. What I'm saying is that either you solve the Riemann Hypothesis or your implementation will be awfully slow (independently of any programming language) for any real world applications other then solving puzzles by factorizing small numbers.
<hanmac>
chridal: hm is 5605927 a prime? because of:
<chridal>
aha! Well, it doesn't need to be fast. It just needs to get the job done.
<havenwood>
chridal: require 'prime'; N = 5_605_927; puts N.prime? ? "#{N} is prime" : "the prime factors of #{N} are\n#{N.prime_division.uniq.sort.join "\n"}"
<chridal>
phale: This might sound odd, but the easiest would probably be to do it in Java then
<phale>
oh
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<hanmac>
phale: or search for bindings for some c++ libs like ogre
<chridal>
I mean, Java isn't *great* for game dev, but it runs Minecraft.
<phale>
hanmac: i was going for sdl and opengl
<chridal>
It's got a friendly syntax, and is easy to learn.
<chridal>
Or go for the bindings, yes.
<hanmac>
sdl and opengl are good, but imo i would prefer to put as much stuff as possible into bindings specially if they can do some higher rendering stuff like ogre of sfml
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<chridal>
I guess it would be possible to do it with as well, tho.
<chridal>
I know Notch of Mojang was doing some 3D roleplaying game in dart at some point
<chridal>
Oh, he left.
<chridal>
with dart as well, tho ***
<hanmac>
hm that reminds me i need to work on my ogre binding again if possible ...
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<anomaly__>
Minecraft has its own tweaked implementation of Java now that is baked in. performance increases and such seem well.
<chridal>
oh, what do they tweak
<chridal>
?
<atmosx>
running prime fact. of 170141183460469231731687303715884105727 made my cpu go crazy hehe
<anomaly__>
saw a fellow run it off a raspberry pi. graphics was low but it was fluid
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<chridal>
hm, how would they actually 'change' java tho?
<atmosx>
havenwood: what I don't understand is... the computation for this data takes palce in the RPi or the RPi sends requests to their private API and gets the results?
<atmosx>
I think the later by looking at some code samples
<atmosx>
I wonder if you could combine this with some betting algorithm.
<atmosx>
brb
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<apeiros>
so, fuck everybody who says email validation is not possible. rfc compliant validation, with some volitional exceptions (no comments in emails - which are valid by spec).
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<apeiros>
including addresses containing utf-8
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<adaedra>
I don’t think anyone say it’s not possible
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<adaedra>
It’s just hard
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<c0mrade>
So....
<apeiros>
so hard, it took me all of ~1h of work
<c0mrade>
WriteLn.Console("Hello");
<apeiros>
back to watching tv, ads are over :)
<c0mrade>
Anyone interested in free hosting on a home server? I give up to 2.5GB of RAM and 200GB of HDD. The virtualization I use is VMware and Hyper-V so if your OS is Linux, kernel if fully cutomizable with full root access :P
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<shevy>
class << $stdout
<shevy>
reading other people's ruby code is full of surprises
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<shevy>
that extends $stdout right?
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<shevy>
class << $stdout; def write
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<shevy>
I guess this could be rewritten like so?
<shevy>
def $stdout.write
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<shevy>
the guy who wrote that is kind of funny
<shevy>
"NOTICE: It is NOT recommended to install by RubyGems, because 'require "rubygems"' is too heavy operation for CGI program."
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<canton7>
probably valid :P
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<shevy>
we could use C for .cgi !
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<shevy>
what would be different if I'd use this
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<shevy>
class << STDOUT; def write
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<c0mrade>
shevy: Why is that?
<shevy>
c0mrade no it is a question, I assume it would be different
<shevy>
understanding code written by other people can be quite frustrating
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<PhaseCode>
Hi guys, I have kind of a complex situation that I'm having trouble. I have two fields start_date and end_date of type DateTime, which store start/end dates. For example Feb 26th 5PM and Feb 27th 8AM, but I want to do reoccuring daily, ie if its Feb 29th 1AM it should fall into that range if its reoccuring daily
<apeiros>
djellemah: if you don't have a question for which this code serves as demonstration, then please use your own pry/irb.
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<PhaseCode>
apeiros: How would I determine if 1AM falls between 5PM and 8AM
<djellemah>
apeiros: see shevy's question
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<apeiros>
PhaseCode: date/time has comparison methods
<apeiros>
PhaseCode: see Comparable
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<greenride>
Ruby coding/style/design pattern question: If one is creating one hash from another (with different key names) and making several small decisions along the way based on whether some entries in the original hash are nil, what is the best way to handle such a task?
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<apeiros>
greenride: depends on specifics. with the given description, I'd probably use .map + .to_h
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<apeiros>
djellemah: ok
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<greenride>
apeiros: I asked the question poorly. I'm refactoring a method over 100 lines. The method creates one hash from another. The hash has about 20 fields. The method renames keys, sets some values, and chooses values based on whether some values in the original hash are nil.
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<apeiros>
greenride: that's still the same vague, so I wouldn't change my response.
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<apeiros>
with a fixed number of fields, I'd probably just use a hash literal
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<greenride>
In the xml world, there is xslt. Does something like this exist for Ruby hashes?
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<apeiros>
that sounds like serious overkill. maybe such a thing exists, I wouldn't know it.
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<DeathCode>
hey guys
<DeathCode>
why do java coders not get laid?
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<inavele>
with differents keys? :S
<DeathCode>
because they treat women like objects
<DeathCode>
hahahah
<DeathCode>
get it?
<inavele>
LoL
<Coraline>
That's... not really funny?
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<DeathCode>
oh no?
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<DeathCode>
oh i thought i was funny :(
<inavele>
sounds funny relax :D
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<DeathCode>
oh you liked it ?
<DeathCode>
:)
<inavele>
yeap
<greenride>
DeathCode: Why do Ruby programmers not get laid?
<greenride>
because they're always thinking about self.
<DeathCode>
greenride:because they are condescending as fuck
<DeathCode>
ohh
<DeathCode>
ok
<wasamasa>
apeiros: free this guy
<DeathCode>
free my niggas in prison
<wasamasa>
apeiros: let the garbage collector loose
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<apeiros>
!ban DeathCode !P 3d good bye
DeathCode was kicked from #ruby by ChanServ [Banned: 3d good bye]
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<Coraline>
You beat me to it.
<adaedra>
thank you.
<apeiros>
hm
<wasamasa>
thanks
<apeiros>
hm, that code is obviously still buggy
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<Coraline>
I like to think of it as a three-dimensional kick
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<wasamasa>
the regulars, the op and the chanserv?
<shevy>
:>
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<workmad3>
wasamasa: or nick, hostname and IP
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<wasamasa>
workmad3: the holy trinity
<shevy>
what would IRC be without those people
<Coraline>
...tolerable?
<adaedra>
a better place
<wasamasa>
shevy: reminds me that I got a pretty infamous one permabanned after being randomly granted +o
<apeiros>
I concur with adaedra
<djellemah>
nobody's completely useless, they can always serve as a bad example
<wasamasa>
well
<greenride>
Coraline: Was I out of line as well?
<wasamasa>
it becomes bothersome if they start harassing everyone
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<wasamasa>
greenride: well, you've been not doing that for weeks, have you
<workmad3>
greenride: no, you were just making a joke... you didn't get onto personal attacks or racial language
<apeiros>
deathcode has been a nuisance since they first joined. I think they actually intended to test the limits.
<shevy>
can someone explain this...
<Coraline>
greenride: before I write something I ask myself if I would want someone who was in-channel for the first time to think that that was the way people always talked.
<shevy>
def $stdout.write(*args)
<shevy>
super(*args)
<shevy>
both times * is used?
<workmad3>
Coraline: same... and then I hit return anyway :P
<shevy>
lol workmad3
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<shevy>
#ruby is full of rich characters
<adaedra>
rich?
<adaedra>
ok everyone, this is a hold-up
<Coraline>
sleep(5)
<agent_white>
\o/
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<djellemah>
shevy: the second *args looks redundant to me, should be able to just say super
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<shevy>
djellemah yeah that was what I was thinking too, I am trying to understand why the guy used that
<shevy>
but if you support my gut feeling then all the better, AWAY with the second * \o/
<greenride>
Coraline: Fair enough... A part of my mind was thinking it was inappropriate before hitting enter... but I did it anyways. Then, he started getting worse and off-topic.
<Coraline>
Guessing that the person came from another language recently?
<djellemah>
I wonder if ruboto will die if I do this: def $stdout.write(*args); super; end; $stdout.write "oops\n"
<shevy>
hmm damn
<adaedra>
the code is available online, so you could run one instance yourself and test
<djellemah>
adaedra: where?
<greenride>
djellemah: I'm looking at the parslet link. This might be exactly what I need. I wasn't exactly looking for an xslt equivalent but didn't know how else to ask the question.
<jidar>
anybody help me with some erb? I'm having a problem with the way .map { |x| 'text' + x.strip }.join is working, because the join doesn't seem to be including the text after the map variable - https://gist.github.com/38daa9c134d2bbf419cf thanks
<adaedra>
djellemah: see with apeiros
<apeiros>
djellemah: tries to break the bot are bannable offense.
<jidar>
the real curious thing is, I can prove the design works the same in straight ruby, see example in gist.
<djellemah>
apeiros: That's why I didn't >> yet ;-)
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<apeiros>
djellemah: if all you want is break it, then you better don't :)
<djellemah>
apeiros: igzakly
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<apeiros>
djellemah: ¿que?
<adaedra>
Quoi ?
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<djellemah>
just say it aloud
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<shevy>
QUOI
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<shevy>
I dislike that, in order to use $ERROR_INFO, one has to require 'English'
<djellemah>
adaedra: um, precisely. But the p is silent, as in swimming.
<adaedra>
.
* djellemah
will just stop trying to be witty now.
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<shevy>
lol
<shevy>
I really need to start collecting quotes from #ruby
<PhaseCode>
apeiros: You still here?
<apeiros>
PhaseCode: partially
<apeiros>
PhaseCode: just ask the channel
<Coraline>
jidar: try "--enable=#{r.strip}" and see if that makes a difference?
<PhaseCode>
apeiros: Okay :) Thanks!
<shevy>
<wasamasa> why is the logo two turtles copulating. what's wrong with these neckbears (neckbeards)
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<shevy>
"<sevenseacat> what are you smoking"
<shevy>
"<phale> where can i create invalid emails"
<PhaseCode>
Hi guys, I have kind of a complex situation that I'm having trouble. I have two fields start_date and end_date of type DateTime, which store start/end dates. For example Feb 26th 5PM and Feb 27th 8AM, but I want to do reoccuring daily, ie if its Feb 29th 1AM it should fall into that range if its reoccuring daily and the two dates cross the date boundry.
<shevy>
ok that is! I shall try my luck at the issue request at github for funny IRC quotes!
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<adaedra>
good luck
<wasamasa>
shevy: like !grab on #archlinux?
<adaedra>
!grab
<wasamasa>
shevy: or more like what bucket on #xkcd does?
<shevy>
what is !grab doing?
<adaedra>
I have some quotes saved by archlinux’s bot
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<adaedra>
shevy: quotes last message
<wasamasa>
shevy: it stores the last thing someone wrote in its db
<shevy>
ah you mean like the bot stores those thingies
<wasamasa>
shevy: you can retrieve it later
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<wasamasa>
shevy: on #xkcd you can store more than one such message by using regex carefully, it even works for things that weren't the last message in a conversation
<jidar>
Coraline: I can try that
* djellemah
gets temporal dissonance trying to figure out what PhaseCode is asking.
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<PhaseCode>
:(
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<PhaseCode>
Let me try and re-explain
<shevy>
I see I see
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<greenride>
djellemah: I looked at parslet more carefully. I am looking for a way to parse and transform data, but it is not quite what I need. I'm looking for a gem that is designed to transform data. A DSL for this purpose would probably look a bit different from a parser/transformer used as a compiler.
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<PhaseCode>
In my database I have two fields that are datetimes, from_date and to_date, and a third field which sets if its a reoccuring event. For example if I set from_date = Feb 27th 5PM and to_date = Feb 28th 8AM amd it is a reoccuring event, everyday between 5PM and 8AM it should happen. So I'm trying to say is if Time.now.utc is between 5pm and 8am please do xyz
<djellemah>
greenride: yeah, like I said it's not all that close. I'd be interested to hear if you find something that does what you're after, cos I've needed that before.
<PhaseCode>
If its not reoccuring it doesn't matter, we just strictly compare the two dates
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<jhass>
shevy: you may join #ruby-community btw ;)
<shevy>
yeah give me a moment anyway, I have to finish that thingy from that other guy... written in 2008... that's soon 10 years of ruby code :\
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<shevy>
I also forgot to buy beer yesterday...
<PhaseCode>
djellemah: Does that clear it up a bit?
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<shevy>
another part that he used is: at_exit
<shevy>
and that actually scares me
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<shevy>
I guess if anyone requires something like that, at_exit will always trigger right? so like if you write:
<djellemah>
PhaseCode: Somewhat. Are you wanting to construct a db query for that?
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<shevy>
at_exit { puts 'BYE MAN!!!' }
<shevy>
it is always invoked right?
<greenride>
djellemah: Totally. Transforming and Parsing data always makes my methods ugly. It's hard to keep cyclomatic complexity and flog score low when doing this type of thing is a real world application.
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<greenride>
djellemah: Closest thing I found is trash, which is included in the hashie gem. It is not as full featured as I would like though.
<PhaseCode>
djellemah: Negative, I'm just trying to see if the time right now falls between the two dates. So here's a good example: from_date = "2015-04-03 20:23:42" to_date = "2015-04-04 08:23:42" and my current time is 2015-04-05 21:48:19 UTC, which would fall between those two times
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<djellemah>
greenride: sometimes, ugly problems need ugly code.
<shevy>
yeah
<adaedra>
PhaseCode: a < Time.now && Time.now < b ?
<shevy>
that's how PHP became popular
<apeiros>
if <= in each place is an option: a.between?(b,c)
<apeiros>
grah, why won't people stop using .parse?
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<apeiros>
.parse is a stop-gap, a fill-in. it's "hey ruby, try to figure out which date is in here because I've no idea"
<zenspider>
because it is convenient. seems obvious.
<djellemah>
apeiros: go on,
<apeiros>
strptime
<apeiros>
if you know the format
<djellemah>
'ave a cuppa. Do you no end o' good
<jidar>
Coraline: produces the same output, oddly enough.
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<apeiros>
and since I think 2.1, strptime is even crazy fast.
<apeiros>
zenspider: yeah, unreliable results are also a job security device… so two for one I guess.
<PhaseCode>
adaedra: I'm not tying to compare the actual dates, just times
<djellemah>
greenride: thanks, I'll check out trash
<adaedra>
ah
<PhaseCode>
djellemah: Returns false, since it's trying to compare full dates not times :(
<jidar>
anybody help me with some erb? I'm having a problem with the way .map { |x| 'text' + x.strip }.join is working, because the join doesn't seem to be including the text after the map variable - https://gist.github.com/7c5b7f6665e9f75368d1 added some more output
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<Coraline>
jidar: try putting the same input in irb. That will eliminate erb as a variable.
<greenride>
djellemah: Maybe... The xslt approach is elegant in some ways. I feel like I shouldn't have to write code like... `if payment && payment[:billing_address] && payment[:billing_address][:first_name]`.
<jidar>
I feel like it's something goofy with how erb works
<Coraline>
jidar: well, that is weird. Try building your string in the controller?
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<PhaseCode>
djellemah: Same thing :(, the thing that makes this so hard is we don't care about the date, just the time.
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<jidar>
Coraline: yea, the way I worked around it for now was by parsing it out manually and throwing the string into the template itself
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<Coraline>
PhaseCode: why not store the time then?
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<PhaseCode>
Coraline: What do you mean? I store the full datetime?
<Coraline>
Denormalization can be useful sometimes.
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<Coraline>
PhaseCode: do the math on the write to extract the time and write that, as opposed to doing math on the query?
<Coraline>
Like you can grab the hour if that's what you care about.
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<Coraline>
Unless I'm misunderstanding you.
<PhaseCode>
Coraline: Correct, the problem is when you cross the 24 hour window. So if you say from 22:00 to 08:00 then how do you find out if you are part of that window?
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<PhaseCode>
from = 22:00 to = 0800, now = 0100
<PhaseCode>
now is between those two times
<djellemah>
greenride: gem 'fastandand' - payment.andand[:billing_address].andand[:first_name] is slightly nicer.
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<zenspider>
my god... stop using andand
<zenspider>
that is, by far, the worst thing to ever come from my libraries
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<apeiros>
zenspider: are you sure? didn't you also patch NilClass to silently drop method_missing exceptions? :)
<djellemah>
zenspider: hah. karma. What do you use?
<PhaseCode>
Coraline & djellemah: Does that help? I suck at explaining complex problems like this
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<Coraline>
apeiros: at least it changes the error message, which is an important part of debugging. Erm.
<Coraline>
Also, hi zenspider
<zenspider>
apeiros: hey. I _like_ objective-c! I think that is a fine pattern, but it only works if everyone uses it
<apeiros>
zenspider: correct
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* zenspider
waves to Coraline
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<adaedra>
”I _like_ objective-c!”
<adaedra>
this is not something I see often
<Coraline>
Every language has something to teach.
<shevy>
COBOL
<greenride>
zenspider: I'm interested in the answer to djellemah's question as well.
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<shevy>
they all wanna get a peek at zenspider
<shevy>
greenride he may now be using .andandand
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<djellemah>
PhaseCode: I have an idea, but I need to ask pry
<Coraline>
COBOL was very important. We probably owe the existence of every modern language to COBOL.
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<PhaseCode>
djellemah: Okay :) Thank you so much!!
<greenride>
shevy: lol... andand is such an awful name... I'm still thinking through the actual design pattern...
<shevy>
andwhat
<shevy>
andwhatthen
<adaedra>
whatwhat
<zenspider>
djellemah/greenride: I use the simplest code that could possibly work... with the absolute minimum of clevar. That immediately rejects andand and its ilk
<djellemah>
greenride: call it a moonad
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<zenspider>
andand is a design smell. a really BAD design smell.
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<jhass>
making a gem in order to have something to blame people for using it
<jhass>
nice move
<greenride>
zenspider: The initial problem was creating one hash from another... within that transformation, stuff like this crops up: `if payment && payment[:billing_address] && payment[:billing_address][:first_name]`. How do you deal with it?
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<Coraline>
Transformation object?
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<zenspider>
jhass: I didn't write it. dope.
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<zenspider>
I don't structure my code like that. again... nil checks are a design smell.
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<jhass>
misread "that is, by far, the worst thing to ever come from my libraries" then I guess ;) tbh I only skimmed backlog
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<greenride>
Coraline: Transformation object?
<greenride>
What do you mean?
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<Coraline>
greenride: depending on how much of a pain it is, I might pass the hash to an object that does the mapping?
<Coraline>
Testable at least that way
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<Coraline>
With methods for executing the transformations on a per-field basis, maybe
<zenspider>
'if a && a.b && a.b.c' is really no different than 'if a.b.c' and that is a violation of demeter. use null objects or transformations or just structure your shit right.
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<zenspider>
eg, params should be unpacked immediately and not passed around / used
<adaedra>
er
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<adaedra>
if a.b.c will throw if a is nil
<greenride>
zenspider: It's a demeter violation only if you're going from object to object.
<zenspider>
adaedra: you're missing the point.
<greenride>
zenspider: If it's all intra-object, is that a demeter violation?
<zenspider>
greenride: nope. you're reaching into someone else's pocket
<djellemah>
PhaseCode: Something like this Time.parse('12:00',from_date.to_date). Basically you put Time.now into the date of from_date. I think that will work.
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<djellemah>
apeiros will be glad to know that also works with strptime
<greenride>
zenspider: Let's say you get a monstrous hash from a 3rd party api, to where do you unpack the hash? And, how do you avoid nil checks?
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<djellemah>
zenspider: how about a.b.c rescue nil ?
* djellemah
ducks
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<greenride>
djellemah: Will you do that for every field?
<greenride>
You'll have methods with 20 or 30 rescue nils?
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* djellemah
waves the "I'm kidding" flag
<zenspider>
greenride: go read everything Coraline said above
<zenspider>
that
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<djellemah>
adioth amoebath. Gotta go.
<greenride>
zenspider: Coraline suggested breaking down into multiple methods on a per-field basis. Is that what you're referring to?
<greenride>
zenspider: And, this inside a transformation object.
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<greenride>
zenspider: And, that transformation object could use a proxy pattern with an underlying trashie (from hashie)?
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<zenspider>
I said "no clevar" so hashie is out.
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<greenride>
zenspider: Thanks
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<zenspider>
schlepping around big hashes of shit is basically avoiding proper OO design entirely
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<Coraline>
^^
<woop>
xposting from #RoR to see if this channel might be able to advise me
<woop>
howdy - I've got an API I'm in the process of revamping, and an idea put forward was to put the old one at something like "mysite.com/api/v1" and the new one at "mysite.com/api/v2" with the v2 api using all of v1's routes pointing to v1's controllers
<woop>
the idea is to have the v2 api present all of the relevant functionality right away as I replace the parts that need to be replaced
<woop>
is there some easy way to do this in rails' routes.rb, and is this even a good idea to do?
<woop>
thanks for any advise
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<zenspider>
"easy way to do this in rails' routes.rb" == learn your editor better?
<zenspider>
otherwise, I'm not getting the question.
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<zenspider>
sounds like 5-10 minutes max with emacs + macros
<zenspider>
I'd assume roughly the same with vim
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<woop>
I guess that'd be one way about it
<woop>
was just wondering if there was rails magic for it
<woop>
but having explicit routes is easy to reason about
<zenspider>
there might be... but in my world, magic is bad.
<woop>
or if I could just make a dispatcher controller that sends the requests to nonexistent routes through the v1 API's routes before 404'ing
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<zenspider>
because that's a _great_ idea
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<woop>
oh, fine
<woop>
you're right: that's a terrible idea.
<woop>
fastest way would probably just be to run "rake routes" through grep/sed or awk to generate the new routes and drop them in
<woop>
if I were to go with the explicit routes
<Coraline>
That sounds fragile.
<zenspider>
is "fastest" best?
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<woop>
if there aren't too many downsides to it, sometimes the answer is yes
<woop>
since I'm not talking about programmatically generating routes on request but just this one time
<iraszl_>
Folks, noob here. Can i some get a direction on how to achieve a “hello, world!” on ruby on osx within the browser? I managed to do it in Terminal, but I don’t understand how do I run an .rb script for it to appear in the browser. Thanks!
<zenspider>
iraszl_: have you done any other programming before?
<iraszl_>
yes, only php
<woop>
iraszl_: you need some sort of server running on your machine that responds to browser requests
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<woop>
PHP needs you to set up apache+mod_php or some other sort of server before you can play
<iraszl_>
yes, i have MAMP
<iraszl_>
i can run php code
<woop>
rails is the popular way to get that ruby to talk to web browsers
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<bradland>
ok, so it's clear you just want to be right
<woop>
don't we all?
<woop>
I'd also like to be right by changing what I'm doing, too
<zenspider>
woop: hah. an ad started up with some warfare movie and I didn't realize it was an ad
<zenspider>
thought it was someone's opinion of CSS :)
<woop>
just a coincidence that the band is called CSS
<zenspider>
bradland: whatever dude
<bradland>
you're taking some fundamentalist stance about app development
<bradland>
whatever yourself
<woop>
lol
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<anskeit>
hey. i could need some help with a little json problem. im trying to get the id from json like this: http://pastebin.com/KSuDQfad the problem is, that the "name" in the first row is always different. how could i do this?
<zenspider>
it's a hash, so you can ask for the keys
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<zenspider>
or just map past it: json.map { |_,v| v["id"] }
<zenspider>
(might be clearer with json.values.map...)